%I #8 Jan 15 2019 14:26:09
%S 1,5,11,29,41,71,89,131,209,239,341,419,461,551,701,869,929,1121,1259,
%T 1331,1559,1721,1979,2351,2549,2651,2861,2969,3191,4031,4289,4691,
%U 4829,5549,5699,6161,6641,6971,7481,8009,8189,9119,9311,9701,9899,11129
%N (p^2-5)/4 for odd primes p.
%t a[n_] := (Prime[n+1]^2-5)/4
%t (#^2-5)/4&/@Prime[Range[2,50]] (* _Harvey P. Dale_, Jan 15 2019 *)
%Y a(n) = A024701(n)-1.
%K nonn,easy
%O 1,2
%A _Roger L. Bagula_, Sep 23 2002
%E Edited by _Dean Hickerson_, Oct 09 2002
|